But DVD -> VCD is a different thing as movies are normally shot with 23.97fps, but then brought to US TV standard NTSC specs by a process called telecine. So, making an inverse telecine for the video material that we _know_ (virtually all of the big name Hollywood movies) that it has been originally shot as 23.97fps, keeps the quality exactly same as we don't remove anything from the video, just the duped frames that were added there when it was originally transferred from FILM (23.97) to NTSC (29.97).